Evaluation method of limit passing power and utilization rate of transmission equipment based on robust optimization

Abstract

The invention discloses a robust optimization-based evaluation method for the limit passing power and utilization rate of power transmission equipment, which acquires system basic technical data, system operation constraint data and system operation prediction data; based on the idea of ​​robust optimization, considers all possible systems In the operating scenarios that appear, maximize the power that may flow through the transmission equipment in a single period, and construct a calculation model for the limit passing power of the transmission equipment based on the idea of ​​robust optimization; solve the established calculation model, obtain the maximum power of the transmission equipment, and then construct a reasonable The calculation formula of the utilization rate index is used to evaluate the operation of the transmission equipment. The specific form is to use the power value of the transmission equipment solved by the model as the limit transmission capacity of the transmission equipment under the existing system scale, and calculate the operating power of the transmission equipment in normal actual operation. The ratio of the ultimate transmission capacity, so as to analyze the resource utilization of the transmission equipment according to this ratio. The invention can more truly reflect the operation condition of the power transmission equipment.

Description

Technical field [0001] The present invention belongs to the technical field of grid planning and operation evaluation in the power system, and in particular to a rower-based optimized transmission device limit through power and utilization evaluation method. Background technique [0002] The power system is responsible for the production and consumption of power electrical energy, affecting the various fields of the national society, and its development construction and economic prosperity and social stability are closely related. The transmission network is an important part of the power system, connecting the power plant, substantial, etc., and undertakes the task of transporting large-scale electrical energy, and is the main artery of the power system. The utilization rate of transmission network is an important indicator for assessing the operation of transmission network operations and even topology. It has studied it to better evaluate the operation efficiency of transmissi...

AI Technical Summary

Problems solved by technology

Due to the influence of many constraints in the operation of the power system, the passing power of the transmission equipment is far below the upper limit in most cases, and the utilization rate of the existing transmission equipment usually takes the thermal stability limit power as the transmission power of the equipment. The upper limit, which leads to the calculated indicators are often at a low level, it is not easy to identify the weak links of the grid

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